Grade stake



FIG. 1 is a top and front side perspective view of my new grade stake;

FIG. 2 is a front side elevation;

FIG. 3 is a rear side elevation;

FIG. 4 is a right side elevation;

FIG. 5 is a left side elevation;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view.

The ornamental design for a grade stake, as shown and described.